This video is extracted from Mike Holt's 2020 Changes to the National Electrical Code Video Library, for more information visit https://www.MikeHolt.com/code​ or call 888.632.2633.

For almost 50 years, Mike Holt Enterprises has been providing quality electrical Code training to help electrical professionals learn the Code, prepare for exams, and improve their electrical knowledge. Visit https://www.MikeHolt.com​ for exam preparation tips and training, instructor and curriculum support, continuing education options, free videos and graphics, and so much more.